6-10 L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
STATUS CHAPTER 6: ACTUAL VALUES
6
RTC SYNC SOURCE actual value is the time synchronizing source the relay is using at present. Possible sources are: Port 1
PTP Clock, Port 2 PTP Clock, Port 3 PTP Clock, IRIG-B, Other, and None, where "Other" means any less precise source (SNTP,
IEC 103, IEC 104, or DNP). An actual value displays when the relay includes the IEEE 1588 software option.
The
GRANDMASTER ID is the grandmasterIdentity code being received from the present PTP grandmaster, if any. When the
relay is not using any PTP grandmaster, this actual value is zero. The grandmasterIdentity code is specified by PTP to be
globally unique, so one can always know which clock is grandmaster in a system with multiple grandmaster-capable
clocks.
ACCURACY is the estimated maximum time error at present in the RTC, considering the quality information imbedded in the
received time signal. The value 999,999,999 indicates that the magnitude of the estimated error is one second or more, or
that the error cannot be estimated.
PORT 1…3 PTP STATE is the present state of the port’s PTP clock. The PTP clock state is:
• Disabled is the port’s function setting is Disabled
• No Signal if enabled but no signal from an active master has been found and selected
• Calibrating if an active master has been selected but lock is not at present established
• Synch’d (No Pdelay) if the port is synchronized, but the peer delay mechanism is non-operational
• Synchronized if synchronized
PTP - IRIG-B DELTA is the time difference, measured in nanoseconds, between the fractional seconds portion of the time
being received via PTP and that being received via IRIG-B. A positive value indicates that PTP time is fast compared to IRIG-
B time.
6.3.17 Remaining connection status
ACTUAL VALUES STATUS COMM STATUS REMAINING CONNECT
These values specify the remaining number of TCP connections still available for each protocol. The display depends on the
options applicable to your device. Each time a connection is used, the remaining number of connections decrements.
When released, the remaining number of connections increments. If no connection is made over the specific protocol, the
number equals the maximum number available for the specific protocol.
For example, the maximum number of Modbus TCP connections is 4. Once an EnerVista session is opened on a computer
connected to the UR over Ethernet, the Modbus TCP status shows 3. If the EnerVista application is closed, the Modbus TCP
status shows 4.
For the graphical front panel, the remaining connections refer to TCP connections only.
MMS TCP — The number of IEC 61850 connections remaining.
PMU TCP — The maximum number of PMU TCP connections matches the number of aggregators. The maximum number of
aggregators for the N60 is 4. The maximum number for the C60 is 2. The maximum number is 1 for other products with a
PMU. The remaining number of aggregators displays here.
COMM STATUS
REMAINING CONNECT
MMS TCP(max 5)
5
Range: 0 to 5
MODBUS TCP (max 4)
4
Range: 0 to 4
DNP TCP(max 2)
2
Range: 0 to 2
IEC-104 TCP(max 2)
2
Range: 0 to 2
PMU TCP
1
Range: 1 to 4
SFTP (max 4)
4
Range: 0 to 4
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